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| 一种Lucy-Richardson算法和小波变换结合的图像复原算法 |
| An image restoration algorithm based on the combination of Lucy-Richardson algorithm and wavelet transform |
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| DOI： |
| 中文关键词: 图像复原 Lucy-Richardson算法 小波变换 |
| 英文关键词:image restoration Lucy-Richardson algorithm wavelet transform |
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| 中文摘要: |
| Lucy-Richardson(LR)算法作为图像复原的经典算法之一,在进行图像复原时,对退化过程的先验知识要求少且复原效果好,然而由于算法采用迭代逼近的方法,故算法耗时长。针对这一缺点,用LR算法与小波变换结合的图像复原算法(即联合算法),分级对图像进行处理,在减小噪声干扰的同时提高算法的恢复效率。实验结果证明该方法在合理的范围内,以牺牲部分复原效果为代价却有效地提高了复原算法的效率。 |
| 英文摘要: |
| As one of the classical algorithms for image restoration, Lucy-Richardson (LR) algorithm requires less knowledge about the degradation process and the restoration effect is good. However, because of the iterative approximation method, the disadvantage of LR algorithm is time consuming. In view of this weakness, an image restoration algorithm based on the combination of the LR algorithm and the wavelet transform is put forth, and the processing of the image is classified in order to improve the efficiency of the restoration while reducing noise. The experimental results show that the method improves the efficiency of the algorithm in reasonable scope at the cost of losing part of the quality of restoration. |
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